ASTROSAT CZTI

Data Quality Report

Orbit 32076

Creation date: 2024-06-27T20:36:11.940668
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1C06_002T04_9000004684_32076cztM0_level2.evt modeM0/AS1C06_002T04_9000004684_32076cztM0_level2_quad_clean.evt
Size (bytes)659,468,160101,643,840
Size628.9 MB 96.9 MB
Events in quadrant A2,939,505715,165
Events in quadrant B8,289,921659,768
Events in quadrant C3,433,259665,126
Events in quadrant D4,922,543637,258

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120901
B0286541
C0137751
D0185991

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5722370.646627%
B5723142224.847108%
C57231702.970470%
D57235169.016250%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7077 5722 0 0 0.00% 0.00%
B 7078 5723 930 930 13.14% 16.25%
C 7078 5723 64 64 0.90% 1.12%
D 7078 5723 402 402 5.68% 7.02%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 13 254 10870 67.7 761 748 149.5
A 3 137 6888 41.07 761 748 149.5
A 0 226 6595 39.11 761 748 149.5
B 10 245 3940849 29998.14 711 697 131.3
B 6 159 1476151 11233.29 711 697 131.3
B 0 190 46131 345.91 711 697 131.3
C 0 10 382901 2365.26 703 708 161.6
C 14 238 126736 779.94 703 708 161.6
C 3 233 106236 653.08 703 708 161.6
D 12 227 1344879 8181.61 704 686 164.3
D 8 195 728613 4430.63 704 686 164.3
D 2 250 132283 800.98 704 686 164.3

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter